B01D2251/406

STABLE AMMONIA ABSORBENTS
20200339434 · 2020-10-29 ·

The present disclosure relates to systems and methods of making ammonia using stable ammonia absorbents. The system and method for producing ammonia, comprises a reactor comprising a catalyst that converts at least a portion of nitrogen feed gas and at least a portion of hydrogen feed gas to ammonia (NH3) forming a reaction mixture comprising the ammonia, unreacted nitrogen, and unreacted hydrogen. An absorber configured to selectively absorb ammonia from the reaction mixture at a temperature of about 180 deg. C. to 330 deg. C. and a pressure of about 1-20 bar, the absorber comprising a solid absorbent. Preferably the solid absorbent is at least one metal halide and a solid support. The unabsorbed ammonium, the unreacted nitrogen, and unreacted hydrogen gas are recycled to the reactor.

Separation of gases using reactive adsorbents and membranes

Gas separation modules and methods for use including an integrated adsorbent and membrane. In certain refining applications, it is paramount to obtain high purity product gases. Adsorbent beds are effective at removing certain contaminants, such as CO.sub.2, from gas streams containing product and contaminant constituents to form a product-rich stream. The integrated membrane permits a further separation of products from any unadsorbed contaminant to produce a high purity product, such as hydrogen, stream. The gas separation modules described herein include stacked, radial, and spiral arrangements. Each modules includes a configuration of feed and cross-flow channels for the collection of contaminant gases and/or high purity product gases.

FLUID FOR CARRYING OUT POLLUTION CONTROL IN HEAT ENGINES, AND METHODS FOR PREPARING SAID FLUIDS BY PRODUCING A HOMOGENEOUS SOLUTION
20180345216 · 2018-12-06 ·

The present invention describes a fluid which is suitable for the decontamination of heat engines which can carry out both, at the same time, the catalytic reduction of oxides of nitrogen (NOx) contained in exhaust gases and assist in the regeneration of the particulate filter (PF). The invention also describes several embodiments of said fluid.

REMOVAL OF MOISTURE FROM HYDRAZINE

The present invention generally relates to the field of gas and liquid phase desiccation. In particular, the present invention relates to methods for removing moisture (and hence oxygen precursors) from hydrazine, thereby providing a high purity source gas suitable for use in vapor deposition processes, such as but not limited to, chemical vapor deposition (CVD) or an atomic layer deposition (ALD).

SEPARATION OF GASES USING REACTIVE ADSORBENTS AND MEMBRANES

Gas separation modules and methods for use including an integrated adsorbent and membrane. In certain refining applications, it is paramount to obtain high purity product gases. Adsorbent beds are effective at removing certain contaminants, such as CO.sub.2, from gas streams containing product and contaminant constituents to form a product-rich stream. The integrated membrane permits a further separation of products from any unadsorbed contaminant to produce a high purity product, such as hydrogen, stream. The gas separation modules described herein include stacked, radial, and spiral arrangements. Each modules includes a configuration of feed and cross-flow channels for the collection of contaminant gases and/or high purity product gases.

Regeneratable ion exchange material for reducing the amount of CO2

The present invention relates to a method for reducing the amount of CO.sub.2 in a carbon dioxide-containing source by using a regeneratable ion exchange material.

REGENERATABLE ION EXCHANGE MATERIAL FOR REDUCING THE AMOUNT OF CO2

The present invention relates to a method for reducing the amount of CO.sub.2 in a carbon dioxide-containing source by using a regeneratable ion exchange material as well as to the use of a regeneratable ion exchange material for reducing the amount of CO.sub.2 from a carbon dioxide-containing source.

Method And Apparatus For Removing A Target Substance From A Gas
20250065268 · 2025-02-27 ·

A method for removing a target substance from a gas is provided. The method comprises providing a capture medium comprising an alkaline aqueous solution for dissolving the target substance comprised in the gas to form a target ion in the capture medium, contacting the target substance comprised in the gas with the capture medium to form a target ion in the capture medium, and transporting the target ion comprised in the capture medium to a process medium via an ion transport mechanism, wherein the process medium comprises an aqueous solution comprising an ion having an electric charge opposite to that of the target ion, and which interacts with the target ion to form a compound in the process medium, wherein the ion transport mechanism is adapted to allow a flow of ions between the capture medium and the process medium to maintain charge balance. An apparatus for removing a target substance from a gas, and use of the method and apparatus disclosed herein in treatment of industrial exhaust gas or air are also provided.

Method for maturing meat

The invention concerns a method for the storage and/or aging of meat in which raw meat is stored in the presence of an alkaline and/or alkaline earth metal carbonate, which is made available in a matrix (1) of aligned and/or non-aligned fibers (2), and an element for use in the storage and/or aging of meat, which comprises a layer of ordered and/or unordered fibers and optionally further layers, which element contains alkaline and/or alkaline earth metal carbonates and/or hydrogen carbonates. By means of the claimed method, aging of raw meat can be carried out in a simple manner without having to give up the taste quality achieved by dry aging.

PROCESS FOR PRODUCING A MIXED FILLER
20250051538 · 2025-02-13 ·

Various embodiments provide an integrated carbon capture, utilization and storage (CCUS) process that can convert CO.sub.2 to Group 2 carbonates and subsequent encapsulation and sequestration process to convert the carbonates to commercially useful aggregate, useful in plastics, building materials, mineral boards, concrete and road materials and make a feedstock of water useful for carbon neutral or carbon negative chloralkali and green hydrogen manufacture.